Commit 57c7c4f8 authored by Bernd Machenschalk's avatar Bernd Machenschalk
Browse files

Merge branch 'update_feb18' into 'master'

Added two remaining young pulsars from FGRP4

See merge request !2
parents bd88d170 0e6bcbbc
......@@ -44,7 +44,7 @@ combination, these improvements led to FGRP4 being our most sensitive survey to
<p>We are very pleased to be able to announce the first set of results from FGRP4. Including the
discovery of PSR J1906+0722 at the beginning of this survey, these bring the total number of
gamma-ray pulsars discovered by our Einstein@Home volunteers to 19. You can find the details and
gamma-ray pulsars discovered by our Einstein@Home volunteers to 21. You can find the details and
plots of all the new discoveries below!</p>
<p>Currently we are working very hard to study all of the results from FGRP4, and we are hoping to
......@@ -686,6 +686,50 @@ gamma-ray emission as a function of pulsar rotation phase and resolve the pulse
</tr>
<!-- psr end //-->
<!-- psr start //-->
<tr>
<td>
<table style="text-align: left; width: 100%;" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="vertical-align: top;">
<table style="text-align: left; width: 202px; height: 41px; font-weight: bold;" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="vertical-align: top; background-color: rgb(204, 204, 204); text-align: center;">Pulsar J1641-5317</td>
</tr>
</tbody>
</table>
<br>
</td>
<td colspan="1" rowspan="2" style="vertical-align: top;" width="460">
<img style="width: 250px;" alt="J1641" src="img/fhist-J1641.png">
<img style="width: 196px; height: 373px;" alt="J1641" src="img/tvsph-J1641.png">
</td>
</tr>
<tr>
<td style="vertical-align: top;">
<b>Volunteers (Country):</b><br>
<a href="https://einsteinathome.org/show_user.php?userid=2013">UW-Madison CAE (USA)</a> and <a href="https://einsteinathome.org/show_user.php?userid=342084">ATLAS AEI Hannover (Germany)</a><br><br>
<b>Date:</b><br>
30 Dec 2015<br><br>
<b>Survey:</b><br>
FGRP4<br><br>
<b>Selected pulsar parameters:</b><br>
Right ascension: 16:41<br>
Declination: -53:17<br>
Spin frequency: 5.71 Hz<br>
First frequency derivate: -1.21 x 10<sup>-13</sup> Hz/s<br>
Characteristic age: 750 kyrs<br>
Spin-down power: 2.7 x 10<sup>34</sup> erg/s<br>
</td>
</tr>
</tbody>
</table>
<br><hr>
</td>
</tr>
<!-- psr end //-->
<!-- psr start //-->
<tr>
<td>
<table style="text-align: left; width: 100%;" border="0" cellpadding="0" cellspacing="0">
......@@ -730,6 +774,50 @@ gamma-ray emission as a function of pulsar rotation phase and resolve the pulse
</tr>
<!-- psr end //-->
<!-- psr start //-->
<tr>
<td>
<table style="text-align: left; width: 100%;" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="vertical-align: top;">
<table style="text-align: left; width: 202px; height: 41px; font-weight: bold;" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="vertical-align: top; background-color: rgb(204, 204, 204); text-align: center;">Pulsar J1817-1742</td>
</tr>
</tbody>
</table>
<br>
</td>
<td colspan="1" rowspan="2" style="vertical-align: top;" width="460">
<img style="width: 250px;" alt="J1817" src="img/fhist-J1817.png">
<img style="width: 196px; height: 373px;" alt="J1817" src="img/tvsph-J1817.png">
</td>
</tr>
<tr>
<td style="vertical-align: top;">
<b>Volunteers (Country):</b><br>
<a href="https://einsteinathome.org/show_user.php?userid=132914">dbillenness (Canada)</a> and <a href="https://einsteinathome.org/show_user.php?userid=499225">Jon Kerfoot (USA)</a><br><br>
<b>Date:</b><br>
24 Dec 2015<br><br>
<b>Survey:</b><br>
FGRP4<br><br>
<b>Selected pulsar parameters:</b><br>
Right ascension: 18:17<br>
Declination: -17:42<br>
Spin frequency: 6.68 Hz<br>
First frequency derivate: -9.18 x 10<sup>-13</sup> Hz/s<br>
Characteristic age: 115 kyrs<br>
Spin-down power: 2.42 x 10<sup>35</sup> erg/s<br>
</td>
</tr>
</tbody>
</table>
<br><hr>
</td>
</tr>
<!-- psr end //-->
<!-- psr start //-->
<tr>
<td>
<table style="text-align: left; width: 100%;" border="0" cellpadding="0" cellspacing="0">
......
img/psrs_vs_time.png

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img/psrs_vs_time.png

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img/psrs_vs_time.png
img/psrs_vs_time.png
img/psrs_vs_time.png
img/psrs_vs_time.png
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......@@ -35,8 +35,9 @@ psr_timeline = np.array([[0,0],
[64,4], # 4 E@H Pulsars, 2013
[84,1], # J1906
[91, 13], # Next bunch of FGRP4 pulsars without J1208
[100, 1],
[102,0]]) # J1208
[100,1], # J1208
[106, 2], # J1817, J1641
[114,0]])
FGRP1_idx = 8
FGRP4_idx = 9
AEI_idx = 5
......@@ -54,7 +55,7 @@ xfmt = ScalarFormatter(useOffset=False)
fig = plt.figure(figsize=(10,5.5))
ax = fig.add_subplot(111)
plt.step(months, psrs,where='post',color='red',linewidth=2.0)
plt.xticks(np.arange(2009,2017))
plt.xticks(np.arange(2009,2019))
plt.ylabel('Total number of pulsars discovered')
plt.title('Timeline of gamma-ray pulsar discoveries in blind searches with Fermi LAT')
......@@ -69,9 +70,9 @@ plt.text(months[FGRP4_idx] + 0.75, 35,'E@H\nFGRP4',ha='center')
# Survey shading
ax.fill_between([months[FGRP1_idx],months[FGRP1_idx+1]],[0,0],[psrs[FGRP1_idx],psrs[FGRP1_idx]],color='darkgrey')
ax.fill_between([months[FGRP4_idx],months[FGRP4_idx+1],months[FGRP4_idx+1],months[-2],months[-2],months[-1]],
[0,0,0,0,0,0],
[psrs[FGRP4_idx],psrs[FGRP4_idx],psrs[FGRP4_idx+1],psrs[FGRP4_idx+1],psrs[-2],psrs[-1]],
ax.fill_between([months[FGRP4_idx],months[FGRP4_idx+1],months[FGRP4_idx+1],months[FGRP4_idx+2],months[FGRP4_idx+2],months[-2],months[-2],months[-1]],
[0,0,0,0,0,0,0,0],
[psrs[FGRP4_idx],psrs[FGRP4_idx],psrs[FGRP4_idx+1],psrs[FGRP4_idx+1],psrs[FGRP4_idx+2],psrs[FGRP4_idx+2],psrs[-2],psrs[-1]],
color='grey')
ax.fill_between([months[AEI_idx],months[AEI_idx + 1],months[AEI_idx + 1],months[FGRP1_idx]],
......@@ -82,6 +83,7 @@ ax.spines['right'].set_visible(False)
ax.spines['top'].set_visible(False)
ax.xaxis.set_ticks_position('bottom')
ax.yaxis.set_ticks_position('left')
plt.ylim(ymin=0)
plt.savefig('img/psrs_vs_time.png',bbox_inches='tight')
plt.show()
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